Empty context

.github/workflows/win.yml

@@ -21,4 +21,8 @@ jobs:
       run: git submodule update --init --recursive
 
     - name: Run tests with Gradle
-      run: gradlew.bat build
+      run: |
+        echo Current directory is:
+        cd
+        gradlew.bat build
+      shell: cmd

core/src/main/proto/spine/core/empty_context.proto

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2019, TeamDev. All rights reserved.
+ *
+ * Redistribution and use in source and/or binary forms, with or without
+ * modification, must retain the above copyright notice and the following
+ * disclaimer.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+syntax = "proto3";
+
+package spine.core;
+
+import "spine/options.proto";
+
+option (type_url_prefix) = "type.spine.io";
+option java_package = "io.spine.core";
+option java_multiple_files = true;
+option java_outer_classname = "EmptyContextProto";
+
+// An empty context is used in combination with message types that do not have a context
+// to conform APIs that require both message and its context.
+//
+// Handlers of command and message may accept both command and event message and their context.
+// Updated entity states when propagated to subscribers do not have a context.
+//
+// The primary purpose of this type is to serve as a placeholder in Java code where
+// `io.spine.core.MessageContext` is needed in combination with message types (like entity sate)
+// which does not have a context. In other words, what `google.protobuf.Empty` is for message,
+// this type is for `io.spine.base.MessageContext`.
+//
+message EmptyContext {
+    option (is).java_type = "io.spine.base.MessageContext";
+}

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.3-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

pom.xml

@@ -12,7 +12,7 @@ all modules and does not describe the project structure per-subproject.
 
 <groupId>io.spine</groupId>
 <artifactId>spine-core-java</artifactId>
-<version>1.1.11</version>
+<version>1.1.12</version>
 
 <inceptionYear>2015</inceptionYear>
 
@@ -52,25 +52,25 @@ all modules and does not describe the project structure per-subproject.
   <dependency>
     <groupId>io.grpc</groupId>
     <artifactId>grpc-okhttp</artifactId>
-    <version>1.22.0</version>
+    <version>1.24.1</version>
     <scope>compile</scope>
   </dependency>
   <dependency>
     <groupId>io.grpc</groupId>
     <artifactId>grpc-protobuf</artifactId>
-    <version>1.22.0</version>
+    <version>1.24.1</version>
     <scope>compile</scope>
   </dependency>
   <dependency>
     <groupId>io.grpc</groupId>
     <artifactId>grpc-stub</artifactId>
-    <version>1.22.0</version>
+    <version>1.24.1</version>
     <scope>compile</scope>
   </dependency>
   <dependency>
     <groupId>io.spine</groupId>
     <artifactId>spine-base</artifactId>
-    <version>1.1.7</version>
+    <version>1.1.9</version>
     <scope>compile</scope>
   </dependency>
   <dependency>
@@ -82,13 +82,13 @@ all modules and does not describe the project structure per-subproject.
   <dependency>
     <groupId>io.spine.tools</groupId>
     <artifactId>spine-model-compiler</artifactId>
-    <version>1.1.7</version>
+    <version>1.1.9</version>
     <scope>compile</scope>
   </dependency>
   <dependency>
     <groupId>io.spine.tools</groupId>
     <artifactId>spine-plugin-base</artifactId>
-    <version>1.1.7</version>
+    <version>1.1.9</version>
     <scope>compile</scope>
   </dependency>
   <dependency>
@@ -118,13 +118,13 @@ all modules and does not describe the project structure per-subproject.
   <dependency>
     <groupId>io.grpc</groupId>
     <artifactId>grpc-netty</artifactId>
-    <version>1.22.0</version>
+    <version>1.24.1</version>
     <scope>test</scope>
   </dependency>
   <dependency>
     <groupId>io.spine</groupId>
     <artifactId>spine-testlib</artifactId>
-    <version>1.1.7</version>
+    <version>1.1.9</version>
     <scope>test</scope>
   </dependency>
   <dependency>
@@ -136,13 +136,13 @@ all modules and does not describe the project structure per-subproject.
   <dependency>
     <groupId>io.spine.tools</groupId>
     <artifactId>spine-mute-logging</artifactId>
-    <version>1.1.7</version>
+    <version>1.1.9</version>
     <scope>test</scope>
   </dependency>
   <dependency>
     <groupId>io.spine.tools</groupId>
     <artifactId>spine-plugin-testlib</artifactId>
-    <version>1.1.7</version>
+    <version>1.1.9</version>
     <scope>test</scope>
   </dependency>
   <dependency>
@@ -194,22 +194,22 @@ all modules and does not describe the project structure per-subproject.
   <dependency>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protoc</artifactId>
-    <version>3.9.0</version>
+    <version>3.10.0</version>
   </dependency>
   <dependency>
     <groupId>io.grpc</groupId>
     <artifactId>protoc-gen-grpc-java</artifactId>
-    <version>1.22.0</version>
+    <version>1.24.1</version>
   </dependency>
   <dependency>
     <groupId>io.spine.tools</groupId>
     <artifactId>spine-javadoc-filter</artifactId>
-    <version>1.1.7</version>
+    <version>1.1.9</version>
   </dependency>
   <dependency>
     <groupId>io.spine.tools</groupId>
     <artifactId>spine-protoc-plugin</artifactId>
-    <version>1.1.5</version>
+    <version>1.1.9</version>
   </dependency>
   <dependency>
     <groupId>net.sourceforge.pmd</groupId>

server/src/test/java/io/spine/server/event/store/DefaultEventStoreTest.java

@@ -57,11 +57,11 @@
 import static io.spine.base.Time.currentTime;
 import static io.spine.grpc.StreamObservers.memoizingObserver;
 import static io.spine.protobuf.Durations2.seconds;
+import static io.spine.protobuf.Messages.isDefault;
 import static io.spine.server.event.given.EventStoreTestEnv.assertDone;
 import static io.spine.server.event.given.EventStoreTestEnv.projectCreated;
 import static io.spine.server.event.given.EventStoreTestEnv.taskAdded;
 import static io.spine.testing.core.given.GivenEnrichment.withOneAttribute;
-import static io.spine.validate.Validate.isDefault;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;

version.gradle

@@ -25,14 +25,14 @@
  *  as we want to manage the versions in a single source.
  */
 
-final def spineVersion = '1.1.11'
+final def spineVersion = '1.1.12'
 
 ext {
     // The version of the modules in this project.
     versionToPublish = spineVersion
 
     // Depend on `base` for the general definitions and a model compiler.
-    spineBaseVersion = '1.1.7'
+    spineBaseVersion = '1.1.9'
 
     // Depend on `time` for `ZoneId`, `ZoneOffset` and other date/time types and utilities.
     spineTimeVersion = '1.1.2'